21001145152

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{991}}^1\times {\mathrm{25471}}^1$

素因数の和:26487

約数の個数: 56

約数和(自身を含む): 44926902272

約数和(自身を除く): 23925757120

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 991, 1982, 3964, 7928, 12883, 15856, 25471, 25766, 31712, 50942, 51532, 63424, 101884, 103064, 203768, 206128, 331123, 407536, 412256, 662246, 815072, 824512, 1324492, 1630144, 2648984, 5297968, 10595936, 21191872, 25241761, 50483522, 100967044, 201934088, 328142893, 403868176, 656285786, 807736352, 1312571572, 1615472704, 2625143144, 5250286288, 10500572576, 21001145152]

約数ペア:

[(1, 21001145152), (2, 10500572576), (4, 5250286288), (8, 2625143144), (13, 1615472704), (16, 1312571572), (26, 807736352), (32, 656285786), (52, 403868176), (64, 328142893), (104, 201934088), (208, 100967044), (416, 50483522), (832, 25241761), (991, 21191872), (1982, 10595936), (3964, 5297968), (7928, 2648984), (12883, 1630144), (15856, 1324492), (25471, 824512), (25766, 815072), (31712, 662246), (50942, 412256), (51532, 407536), (63424, 331123), (101884, 206128), (103064, 203768)]