21455779408

素因数分解:

$2^4\times 7^1\times {\mathrm{313}}^1\times {\mathrm{612043}}^1$

素因数の和:612371

約数の個数: 40

約数和(自身を含む): 47661090368

約数和(自身を除く): 26205310960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 313, 626, 1252, 2191, 2504, 4382, 5008, 8764, 17528, 35056, 612043, 1224086, 2448172, 4284301, 4896344, 8568602, 9792688, 17137204, 34274408, 68548816, 191569459, 383138918, 766277836, 1340986213, 1532555672, 2681972426, 3065111344, 5363944852, 10727889704, 21455779408]

約数ペア:

[(1, 21455779408), (2, 10727889704), (4, 5363944852), (7, 3065111344), (8, 2681972426), (14, 1532555672), (16, 1340986213), (28, 766277836), (56, 383138918), (112, 191569459), (313, 68548816), (626, 34274408), (1252, 17137204), (2191, 9792688), (2504, 8568602), (4382, 4896344), (5008, 4284301), (8764, 2448172), (17528, 1224086), (35056, 612043)]