21419880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1733}}^1$

素因数の和:1850

約数の個数: 64

約数和(自身を含む): 64920960

約数和(自身を除く): 43501080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 103, 120, 206, 309, 412, 515, 618, 824, 1030, 1236, 1545, 1733, 2060, 2472, 3090, 3466, 4120, 5199, 6180, 6932, 8665, 10398, 12360, 13864, 17330, 20796, 25995, 34660, 41592, 51990, 69320, 103980, 178499, 207960, 356998, 535497, 713996, 892495, 1070994, 1427992, 1784990, 2141988, 2677485, 3569980, 4283976, 5354970, 7139960, 10709940, 21419880]

約数ペア:

[(1, 21419880), (2, 10709940), (3, 7139960), (4, 5354970), (5, 4283976), (6, 3569980), (8, 2677485), (10, 2141988), (12, 1784990), (15, 1427992), (20, 1070994), (24, 892495), (30, 713996), (40, 535497), (60, 356998), (103, 207960), (120, 178499), (206, 103980), (309, 69320), (412, 51990), (515, 41592), (618, 34660), (824, 25995), (1030, 20796), (1236, 17330), (1545, 13864), (1733, 12360), (2060, 10398), (2472, 8665), (3090, 6932), (3466, 6180), (4120, 5199)]