18881928

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{20173}}^1$

素因数の和:20198

約数の個数: 48

約数和(自身を含む): 55075020

約数和(自身を除く): 36193092

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 20173, 40346, 60519, 80692, 121038, 161384, 181557, 242076, 262249, 363114, 484152, 524498, 726228, 786747, 1048996, 1452456, 1573494, 2097992, 2360241, 3146988, 4720482, 6293976, 9440964, 18881928]

約数ペア:

[(1, 18881928), (2, 9440964), (3, 6293976), (4, 4720482), (6, 3146988), (8, 2360241), (9, 2097992), (12, 1573494), (13, 1452456), (18, 1048996), (24, 786747), (26, 726228), (36, 524498), (39, 484152), (52, 363114), (72, 262249), (78, 242076), (104, 181557), (117, 161384), (156, 121038), (234, 80692), (312, 60519), (468, 40346), (936, 20173)]