17820088

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 40410720

約数和(自身を除く): 22590632

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 37, 44, 52, 74, 88, 104, 143, 148, 286, 296, 407, 421, 481, 572, 814, 842, 962, 1144, 1628, 1684, 1924, 3256, 3368, 3848, 4631, 5291, 5473, 9262, 10582, 10946, 15577, 18524, 21164, 21892, 31154, 37048, 42328, 43784, 60203, 62308, 120406, 124616, 171347, 202501, 240812, 342694, 405002, 481624, 685388, 810004, 1370776, 1620008, 2227511, 4455022, 8910044, 17820088]

約数ペア:

[(1, 17820088), (2, 8910044), (4, 4455022), (8, 2227511), (11, 1620008), (13, 1370776), (22, 810004), (26, 685388), (37, 481624), (44, 405002), (52, 342694), (74, 240812), (88, 202501), (104, 171347), (143, 124616), (148, 120406), (286, 62308), (296, 60203), (407, 43784), (421, 42328), (481, 37048), (572, 31154), (814, 21892), (842, 21164), (962, 18524), (1144, 15577), (1628, 10946), (1684, 10582), (1924, 9262), (3256, 5473), (3368, 5291), (3848, 4631)]