21070292411

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1\times {\mathrm{2161}}^1$

素因数の和:2903

約数の個数: 32

約数和(自身を含む): 25183944576

約数和(自身を除く): 4113652165

約数列:

[1, 7, 41, 53, 287, 371, 641, 2161, 2173, 4487, 15127, 15211, 26281, 33973, 88601, 114533, 183967, 237811, 620207, 801731, 1385201, 1392893, 4695853, 9696407, 9750251, 32870971, 56793241, 73415653, 397552687, 513909571, 3010041773, 21070292411]

約数ペア:

[(1, 21070292411), (7, 3010041773), (41, 513909571), (53, 397552687), (287, 73415653), (371, 56793241), (641, 32870971), (2161, 9750251), (2173, 9696407), (4487, 4695853), (15127, 1392893), (15211, 1385201), (26281, 801731), (33973, 620207), (88601, 237811), (114533, 183967)]