19834395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 38928384

約数和(自身を除く): 19093989

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 43, 69, 105, 115, 129, 161, 191, 215, 301, 345, 483, 573, 645, 805, 903, 955, 989, 1337, 1505, 2415, 2865, 2967, 4011, 4393, 4515, 4945, 6685, 6923, 8213, 13179, 14835, 20055, 20769, 21965, 24639, 30751, 34615, 41065, 57491, 65895, 92253, 103845, 123195, 153755, 172473, 188899, 287455, 461265, 566697, 862365, 944495, 1322293, 2833485, 3966879, 6611465, 19834395]

約数ペア:

[(1, 19834395), (3, 6611465), (5, 3966879), (7, 2833485), (15, 1322293), (21, 944495), (23, 862365), (35, 566697), (43, 461265), (69, 287455), (105, 188899), (115, 172473), (129, 153755), (161, 123195), (191, 103845), (215, 92253), (301, 65895), (345, 57491), (483, 41065), (573, 34615), (645, 30751), (805, 24639), (903, 21965), (955, 20769), (989, 20055), (1337, 14835), (1505, 13179), (2415, 8213), (2865, 6923), (2967, 6685), (4011, 4945), (4393, 4515)]