917995988

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{21193}}^1$

素因数の和:21241

約数の個数: 72

約数和(自身を含む): 2131014312

約数和(自身を除く): 1213018324

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 49, 52, 68, 91, 98, 119, 182, 196, 221, 238, 364, 442, 476, 637, 833, 884, 1274, 1547, 1666, 2548, 3094, 3332, 6188, 10829, 21193, 21658, 42386, 43316, 84772, 148351, 275509, 296702, 360281, 551018, 593404, 720562, 1038457, 1102036, 1441124, 1928563, 2076914, 2521967, 3857126, 4153828, 4683653, 5043934, 7714252, 9367306, 10087868, 13499941, 17653769, 18734612, 26999882, 32785571, 35307538, 53999764, 65571142, 70615076, 131142284, 229498997, 458997994, 917995988]

約数ペア:

[(1, 917995988), (2, 458997994), (4, 229498997), (7, 131142284), (13, 70615076), (14, 65571142), (17, 53999764), (26, 35307538), (28, 32785571), (34, 26999882), (49, 18734612), (52, 17653769), (68, 13499941), (91, 10087868), (98, 9367306), (119, 7714252), (182, 5043934), (196, 4683653), (221, 4153828), (238, 3857126), (364, 2521967), (442, 2076914), (476, 1928563), (637, 1441124), (833, 1102036), (884, 1038457), (1274, 720562), (1547, 593404), (1666, 551018), (2548, 360281), (3094, 296702), (3332, 275509), (6188, 148351), (10829, 84772), (21193, 43316), (21658, 42386)]