21614860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{449}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 47628000

約数和(自身を除く): 26013140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 83, 116, 145, 166, 290, 332, 415, 449, 580, 830, 898, 1660, 1796, 2245, 2407, 4490, 4814, 8980, 9628, 12035, 13021, 24070, 26042, 37267, 48140, 52084, 65105, 74534, 130210, 149068, 186335, 260420, 372670, 745340, 1080743, 2161486, 4322972, 5403715, 10807430, 21614860]

約数ペア:

[(1, 21614860), (2, 10807430), (4, 5403715), (5, 4322972), (10, 2161486), (20, 1080743), (29, 745340), (58, 372670), (83, 260420), (116, 186335), (145, 149068), (166, 130210), (290, 74534), (332, 65105), (415, 52084), (449, 48140), (580, 37267), (830, 26042), (898, 24070), (1660, 13021), (1796, 12035), (2245, 9628), (2407, 8980), (4490, 4814)]