840823354

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{19973}}^1$

素因数の和:20110

約数の個数: 32

約数和(自身を含む): 1503323136

約数和(自身を除く): 662499782

約数列:

[1, 2, 7, 14, 31, 62, 97, 194, 217, 434, 679, 1358, 3007, 6014, 19973, 21049, 39946, 42098, 139811, 279622, 619163, 1238326, 1937381, 3874762, 4334141, 8668282, 13561667, 27123334, 60058811, 120117622, 420411677, 840823354]

約数ペア:

[(1, 840823354), (2, 420411677), (7, 120117622), (14, 60058811), (31, 27123334), (62, 13561667), (97, 8668282), (194, 4334141), (217, 3874762), (434, 1937381), (679, 1238326), (1358, 619163), (3007, 279622), (6014, 139811), (19973, 42098), (21049, 39946)]