21060870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{233}}^1$

素因数の和:397

約数の個数: 64

約数和(自身を含む): 53374464

約数和(自身を除く): 32313594

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 131, 138, 230, 233, 262, 345, 393, 466, 655, 690, 699, 786, 1165, 1310, 1398, 1965, 2330, 3013, 3495, 3930, 5359, 6026, 6990, 9039, 10718, 15065, 16077, 18078, 26795, 30130, 30523, 32154, 45195, 53590, 61046, 80385, 90390, 91569, 152615, 160770, 183138, 305230, 457845, 702029, 915690, 1404058, 2106087, 3510145, 4212174, 7020290, 10530435, 21060870]

約数ペア:

[(1, 21060870), (2, 10530435), (3, 7020290), (5, 4212174), (6, 3510145), (10, 2106087), (15, 1404058), (23, 915690), (30, 702029), (46, 457845), (69, 305230), (115, 183138), (131, 160770), (138, 152615), (230, 91569), (233, 90390), (262, 80385), (345, 61046), (393, 53590), (466, 45195), (655, 32154), (690, 30523), (699, 30130), (786, 26795), (1165, 18078), (1310, 16077), (1398, 15065), (1965, 10718), (2330, 9039), (3013, 6990), (3495, 6026), (3930, 5359)]