21508701176

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1699}}^1\times {\mathrm{2251}}^1$

素因数の和:4012

約数の個数: 64

約数和(自身を含む): 43643760000

約数和(自身を除く): 22135058824

約数列:

[1, 2, 4, 8, 19, 37, 38, 74, 76, 148, 152, 296, 703, 1406, 1699, 2251, 2812, 3398, 4502, 5624, 6796, 9004, 13592, 18008, 32281, 42769, 62863, 64562, 83287, 85538, 125726, 129124, 166574, 171076, 251452, 258248, 333148, 342152, 502904, 666296, 1194397, 1582453, 2388794, 3164906, 3824449, 4777588, 6329812, 7648898, 9555176, 12659624, 15297796, 30595592, 72664531, 141504613, 145329062, 283009226, 290658124, 566018452, 581316248, 1132036904, 2688587647, 5377175294, 10754350588, 21508701176]

約数ペア:

[(1, 21508701176), (2, 10754350588), (4, 5377175294), (8, 2688587647), (19, 1132036904), (37, 581316248), (38, 566018452), (74, 290658124), (76, 283009226), (148, 145329062), (152, 141504613), (296, 72664531), (703, 30595592), (1406, 15297796), (1699, 12659624), (2251, 9555176), (2812, 7648898), (3398, 6329812), (4502, 4777588), (5624, 3824449), (6796, 3164906), (9004, 2388794), (13592, 1582453), (18008, 1194397), (32281, 666296), (42769, 502904), (62863, 342152), (64562, 333148), (83287, 258248), (85538, 251452), (125726, 171076), (129124, 166574)]