21482690

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:215

約数の個数: 48

約数和(自身を含む): 42045696

約数和(自身を除く): 20563006

約数列:

[1, 2, 5, 10, 23, 31, 46, 62, 115, 131, 155, 230, 262, 310, 529, 655, 713, 1058, 1310, 1426, 2645, 3013, 3565, 4061, 5290, 6026, 7130, 8122, 15065, 16399, 20305, 30130, 32798, 40610, 69299, 81995, 93403, 138598, 163990, 186806, 346495, 467015, 692990, 934030, 2148269, 4296538, 10741345, 21482690]

約数ペア:

[(1, 21482690), (2, 10741345), (5, 4296538), (10, 2148269), (23, 934030), (31, 692990), (46, 467015), (62, 346495), (115, 186806), (131, 163990), (155, 138598), (230, 93403), (262, 81995), (310, 69299), (529, 40610), (655, 32798), (713, 30130), (1058, 20305), (1310, 16399), (1426, 15065), (2645, 8122), (3013, 7130), (3565, 6026), (4061, 5290)]