21388770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:308

約数の個数: 96

約数和(自身を含む): 60815664

約数和(自身を除く): 39426894

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 101, 117, 130, 181, 195, 202, 234, 303, 362, 390, 505, 543, 585, 606, 905, 909, 1010, 1086, 1170, 1313, 1515, 1629, 1810, 1818, 2353, 2626, 2715, 3030, 3258, 3939, 4545, 4706, 5430, 6565, 7059, 7878, 8145, 9090, 11765, 11817, 13130, 14118, 16290, 18281, 19695, 21177, 23530, 23634, 35295, 36562, 39390, 42354, 54843, 59085, 70590, 91405, 105885, 109686, 118170, 164529, 182810, 211770, 237653, 274215, 329058, 475306, 548430, 712959, 822645, 1188265, 1425918, 1645290, 2138877, 2376530, 3564795, 4277754, 7129590, 10694385, 21388770]

約数ペア:

[(1, 21388770), (2, 10694385), (3, 7129590), (5, 4277754), (6, 3564795), (9, 2376530), (10, 2138877), (13, 1645290), (15, 1425918), (18, 1188265), (26, 822645), (30, 712959), (39, 548430), (45, 475306), (65, 329058), (78, 274215), (90, 237653), (101, 211770), (117, 182810), (130, 164529), (181, 118170), (195, 109686), (202, 105885), (234, 91405), (303, 70590), (362, 59085), (390, 54843), (505, 42354), (543, 39390), (585, 36562), (606, 35295), (905, 23634), (909, 23530), (1010, 21177), (1086, 19695), (1170, 18281), (1313, 16290), (1515, 14118), (1629, 13130), (1810, 11817), (1818, 11765), (2353, 9090), (2626, 8145), (2715, 7878), (3030, 7059), (3258, 6565), (3939, 5430), (4545, 4706)]