21747492

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1499}}^1$

素因数の和:1553

約数の個数: 72

約数和(自身を含む): 61152000

約数和(自身を除く): 39404508

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1499, 1612, 2418, 2998, 3627, 4497, 4836, 5996, 7254, 8994, 13491, 14508, 17988, 19487, 26982, 38974, 46469, 53964, 58461, 77948, 92938, 116922, 139407, 175383, 185876, 233844, 278814, 350766, 418221, 557628, 604097, 701532, 836442, 1208194, 1672884, 1812291, 2416388, 3624582, 5436873, 7249164, 10873746, 21747492]

約数ペア:

[(1, 21747492), (2, 10873746), (3, 7249164), (4, 5436873), (6, 3624582), (9, 2416388), (12, 1812291), (13, 1672884), (18, 1208194), (26, 836442), (31, 701532), (36, 604097), (39, 557628), (52, 418221), (62, 350766), (78, 278814), (93, 233844), (117, 185876), (124, 175383), (156, 139407), (186, 116922), (234, 92938), (279, 77948), (372, 58461), (403, 53964), (468, 46469), (558, 38974), (806, 26982), (1116, 19487), (1209, 17988), (1499, 14508), (1612, 13491), (2418, 8994), (2998, 7254), (3627, 5996), (4497, 4836)]