18993728

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{617}}^1$

素因数の和:679

約数の個数: 56

約数和(自身を含む): 41754552

約数和(自身を除く): 22760824

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 52, 64, 74, 104, 148, 208, 296, 416, 481, 592, 617, 832, 962, 1184, 1234, 1924, 2368, 2468, 3848, 4936, 7696, 8021, 9872, 15392, 16042, 19744, 22829, 30784, 32084, 39488, 45658, 64168, 91316, 128336, 182632, 256672, 296777, 365264, 513344, 593554, 730528, 1187108, 1461056, 2374216, 4748432, 9496864, 18993728]

約数ペア:

[(1, 18993728), (2, 9496864), (4, 4748432), (8, 2374216), (13, 1461056), (16, 1187108), (26, 730528), (32, 593554), (37, 513344), (52, 365264), (64, 296777), (74, 256672), (104, 182632), (148, 128336), (208, 91316), (296, 64168), (416, 45658), (481, 39488), (592, 32084), (617, 30784), (832, 22829), (962, 19744), (1184, 16042), (1234, 15392), (1924, 9872), (2368, 8021), (2468, 7696), (3848, 4936)]