21310380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1301}}^1$

素因数の和:1336

約数の個数: 144

約数和(自身を含む): 79619904

約数和(自身を除く): 58309524

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1301, 1365, 1638, 1820, 2340, 2602, 2730, 3276, 3903, 4095, 5204, 5460, 6505, 7806, 8190, 9107, 11709, 13010, 15612, 16380, 16913, 18214, 19515, 23418, 26020, 27321, 33826, 36428, 39030, 45535, 46836, 50739, 54642, 58545, 67652, 78060, 81963, 84565, 91070, 101478, 109284, 117090, 118391, 136605, 152217, 163926, 169130, 182140, 202956, 234180, 236782, 253695, 273210, 304434, 327852, 338260, 355173, 409815, 473564, 507390, 546420, 591955, 608868, 710346, 761085, 819630, 1014780, 1065519, 1183910, 1420692, 1522170, 1639260, 1775865, 2131038, 2367820, 3044340, 3551730, 4262076, 5327595, 7103460, 10655190, 21310380]

約数ペア:

[(1, 21310380), (2, 10655190), (3, 7103460), (4, 5327595), (5, 4262076), (6, 3551730), (7, 3044340), (9, 2367820), (10, 2131038), (12, 1775865), (13, 1639260), (14, 1522170), (15, 1420692), (18, 1183910), (20, 1065519), (21, 1014780), (26, 819630), (28, 761085), (30, 710346), (35, 608868), (36, 591955), (39, 546420), (42, 507390), (45, 473564), (52, 409815), (60, 355173), (63, 338260), (65, 327852), (70, 304434), (78, 273210), (84, 253695), (90, 236782), (91, 234180), (105, 202956), (117, 182140), (126, 169130), (130, 163926), (140, 152217), (156, 136605), (180, 118391), (182, 117090), (195, 109284), (210, 101478), (234, 91070), (252, 84565), (260, 81963), (273, 78060), (315, 67652), (364, 58545), (390, 54642), (420, 50739), (455, 46836), (468, 45535), (546, 39030), (585, 36428), (630, 33826), (780, 27321), (819, 26020), (910, 23418), (1092, 19515), (1170, 18214), (1260, 16913), (1301, 16380), (1365, 15612), (1638, 13010), (1820, 11709), (2340, 9107), (2602, 8190), (2730, 7806), (3276, 6505), (3903, 5460), (4095, 5204)]