21970308

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{557}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 54371520

約数和(自身を除く): 32401212

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 173, 228, 346, 519, 557, 692, 1038, 1114, 1671, 2076, 2228, 3287, 3342, 6574, 6684, 9861, 10583, 13148, 19722, 21166, 31749, 39444, 42332, 63498, 96361, 126996, 192722, 289083, 385444, 578166, 1156332, 1830859, 3661718, 5492577, 7323436, 10985154, 21970308]

約数ペア:

[(1, 21970308), (2, 10985154), (3, 7323436), (4, 5492577), (6, 3661718), (12, 1830859), (19, 1156332), (38, 578166), (57, 385444), (76, 289083), (114, 192722), (173, 126996), (228, 96361), (346, 63498), (519, 42332), (557, 39444), (692, 31749), (1038, 21166), (1114, 19722), (1671, 13148), (2076, 10583), (2228, 9861), (3287, 6684), (3342, 6574)]