21957572

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{337}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 47698560

約数和(自身を除く): 25740988

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 179, 182, 337, 358, 364, 674, 716, 1253, 1348, 2327, 2359, 2506, 4381, 4654, 4718, 5012, 8762, 9308, 9436, 16289, 17524, 30667, 32578, 60323, 61334, 65156, 120646, 122668, 241292, 422261, 784199, 844522, 1568398, 1689044, 3136796, 5489393, 10978786, 21957572]

約数ペア:

[(1, 21957572), (2, 10978786), (4, 5489393), (7, 3136796), (13, 1689044), (14, 1568398), (26, 844522), (28, 784199), (52, 422261), (91, 241292), (179, 122668), (182, 120646), (337, 65156), (358, 61334), (364, 60323), (674, 32578), (716, 30667), (1253, 17524), (1348, 16289), (2327, 9436), (2359, 9308), (2506, 8762), (4381, 5012), (4654, 4718)]