21914860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:175

約数の個数: 96

約数和(自身を含む): 53996544

約数和(自身を除く): 32081684

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 61, 71, 92, 110, 115, 122, 142, 220, 230, 244, 253, 284, 305, 355, 460, 506, 610, 671, 710, 781, 1012, 1220, 1265, 1342, 1403, 1420, 1562, 1633, 2530, 2684, 2806, 3124, 3266, 3355, 3905, 4331, 5060, 5612, 6532, 6710, 7015, 7810, 8165, 8662, 13420, 14030, 15433, 15620, 16330, 17324, 17963, 21655, 28060, 30866, 32660, 35926, 43310, 47641, 61732, 71852, 77165, 86620, 89815, 95282, 99613, 154330, 179630, 190564, 199226, 238205, 308660, 359260, 398452, 476410, 498065, 952820, 996130, 1095743, 1992260, 2191486, 4382972, 5478715, 10957430, 21914860]

約数ペア:

[(1, 21914860), (2, 10957430), (4, 5478715), (5, 4382972), (10, 2191486), (11, 1992260), (20, 1095743), (22, 996130), (23, 952820), (44, 498065), (46, 476410), (55, 398452), (61, 359260), (71, 308660), (92, 238205), (110, 199226), (115, 190564), (122, 179630), (142, 154330), (220, 99613), (230, 95282), (244, 89815), (253, 86620), (284, 77165), (305, 71852), (355, 61732), (460, 47641), (506, 43310), (610, 35926), (671, 32660), (710, 30866), (781, 28060), (1012, 21655), (1220, 17963), (1265, 17324), (1342, 16330), (1403, 15620), (1420, 15433), (1562, 14030), (1633, 13420), (2530, 8662), (2684, 8165), (2806, 7810), (3124, 7015), (3266, 6710), (3355, 6532), (3905, 5612), (4331, 5060)]